DJI Innovations Naza Lite GPS & Naza M V2 GPS FAQ's:

What Multi Copter frames can I use the DJI Naza V2 and Naza Lite with?

The DJI Naza Lite can be used on QuadCopters, HexaCopters and Y6 mulitcopter frames, at this time there is no support for TriCopters or OctoCopters. You should not use the Naza on frames with a diameter of greater than 65 Cm’s. The Naza M V2 GPS supports the same frames as the Naza M Lite with the addition of OctoCopters.

When I arm the NAZA the motors don’t spin up?

Incorrect calibration of the radio is normally the concern here; this includes both the “command stick calibration” and all of the flight modes M, Atti, GPS Atti and Fail Safe in the “control mode switch” sections of the “TX Cali” options in the Naza Assist program. Check that all the functions and movements are as they should be in the “TX Cali” screen.

Incorrect mode selected for flight, if you see a fast pulsing amber / yellow LED on the PMU you when you connect your LiPo battery this means you are in Fail Safe mode, select a flight mode like GPS Atti and then try again. If you are unable to change the flight mode to Atti, GPS Atti or Manual mode the LED will not change colour, this concern is usually caused by incorrect calibration.

The motors will not arm when connected to the computer / UBS cable, they are disarmed for safety at this time.

When I try and take off the frame starts to lift on one corner / side and looks like it will flip over if I power up more, what’s happening here?

The most important steps to take before you start to take off for your first time flight, is to check that you have set each option in the assist software correctly; this includes the correct GPS / Compass position figures and radio calibration etc.

When you are sure that these settings are all correct it is a good idea to carry out a “hand test” of the DJI Naza flight system and copter. WARNING, the props are very sharp and if they make contact with any part of your body you will be badly injured, make sure you are clear of the props before arming the motors! The “hand test” is best carried out by two people. When you have a firm hold on the main frame plates (hands well away from the prop rotation area) of your copter arm the motors in Atti mode, bring up the power until the props are spinning and you can feel the copter becoming light in your hands, at this point you will tip the copter left, right, back and forwards, as you move the copter you should feel a resistance to these movement in the opposite direction, if this the case start to move the controls for a direction a little, when you push forward, backwards, left and right you should feel the copter starting to pull in that direction of the stick movement, if the DJI NAZA system and the copter passes these tests you are ready for take-off!

Many people will increase the power for take-off very slowly, this can cause the concerns with the sides of the copter lifting and looking as if it will flip on take-off. The correct way to lift off is to arm the motors, bring the throttle to 50% in one smooth motion and then continue to about 75% throttle to get clear of the ground. When the copter leaves the ground return the throttle to about 50% or just over and you are now up and flying!

I tried the “hand Test” and it did not do what I expected?

This is normally due to the wrong flight mode, incorrect prop fitment or incorrect motor rotation, please check that these are correct and try again. Make sure you are not in GPS Atti or manual mode for the hand test, use Atti mode.

I can’t make the Naza hold position very well; it will just start to drift away?

Are you in GPS Atti mode? The LED will be flash green about once a second, if you are in another flight mode like Atti it will not hold it position.

Did you wait for all of the GPS Naza to find enough satellites before taking off? We always recommend that the copter be placed in clear view of the sky, when powering up in GPS Atti mode you will see the red flashes between the green, these will start at three red flashes then drop to two then one. After the red flashes have stopped you will see that there is a set of four green flashes very quickly back to back, once you have seen these you are ready for flight.

If you see any slow red flashes while in flight like those seen before taking off the system has lost a number of satellites, this could be due to weather or other factors like buildings or trees; it is not unusual for drift to happen when flying low and the GPS / Compass can’t see a clear view of the sky. All GPS units can be affected by “MultiPathing” see this for more information.

Have you set all trims to the mid-point on your transmitter, if they are not please do this and try again as this can also cause a “drift” as the Naza will think you have moved the stick and holding it in that position.

Why do I need to setup the compass calibration before I can fly?

The compass is used to allow the system to know which way it is pointing, GPS is not very good at knowing the direction you face when standing still, as the copters will do position hold they would yaw without the compass being there, so if the compass thinks that North is closer to South you will have yaw issues. It is very important to setup the compass unit before you fly for the first time, it is also important to set it again if you move a long way from your normal flight field. The compass needs to have the magnetic declination set as it will change as you move around to new locations.

Can I use the GPS unit from the Wookong M WKM on the NAZA, or the NAZA M V2 GPS on the Wookong M WKM?

No, these are not compatible with one another. The Wookong M has different internals and software.

Can I use the Naza Lite or Naza V2 GPS unit on a traditional Helicopter?

No, the Naza M Lite and NAZA M V2 GPS are for multi rotor craft only.

I need to use an OSD with my Naza M; do DJI have one which will work?

Yes the Naza M V2 GPS will work with the iOSD from DJI, if you would like to use the iOSD system with a Naza M V1 (not Naza M Lite) you will need to add the Naza M V2 PMU to your controller.

I own a radio system already, can I use this? Or what Radio system should I use with the NAZA?

You can use any number of radio systems with the NAZA, however we always recommend the use of the Futaba radio systems as they have S-Bus, this is an exclusive feature to Futaba RC Radios. The S-Bus system removes all of the wires needed to connect to the Naza Flight Controller by other systems like Spektrum, these are replaced by one S-Bus wire, this replaces up to 8 wires found on another brand of radio like the Spektrum radios. The key things to look for in a radio system is 2 three position switches and a “knob” which will allow you to do both the initial in-flight tuning, then at a later point this same “knob” can then be used for a camera gimbal to adjust the pitch to look down to the ground while taking photos or filming.

Should I use Aeroplane or Helicopter mode on my radio system with the Naza?

You should use Aeroplane mode not Helicopter on your RC radio system with all of the DJI multi Rotor systems.

Where are the Bec / uBec on the system?

All of the DJI Naza M flight controller are supplied with a uBec, this is called a PMU by DJI, and it acts as both the uBec and the USB connector to a PC for programming. The PMU also has a LED which is multi coloured to reflect the flight mode selected and to communicate information about the controller condition and flight mode selected. The Naza M V2 has a Naza M V2 PMU which has the added function of a Can network for use with the DJI Zenmuse H3-2D GoPro Brushless camera Gimbal

How do I know when my battery is low in power and I need to land?

When setting up the Naza in the assist software the voltage section allows you to tell the system what voltages you would like to set on the battery warnings, there is even a calibration section to allow you to fine tune the Naza battery monitor so you know it will be precise, the PMU will flash a rapid red LED when the battery low voltage settings are reached. This warning will work in all modes.

I can’t get the Naza to connect with my computer?

You will need to install the USB drivers for your PC to allow Windows to recognise that you are using new hardware and allow it to communicate with it. At this time the Naza Assist is a PC only application, Mac users need to operate the Naza Assist in an emulator. You will need to power the Naza from a battery to allow connection as the PC will not power the Naza unit from the USB port.

I have seen the Naza GPS come home and land by itself, is this Fail Safe?

Yes, there are two ways in which you can trigger the fail safe settings, you assign a switch to send the Naza in to fail safe or you can set your RC radio to go into fail safe mode if you fly beyond the range of the radio or the signal is lost while in flight. You can set these up to run alongside each other, so you have a choice of flicking a switch to bring home the NAZA or if there was a loss of signal it will do the same. The pre-built kits which we sell are set up with the fail safe on both a switch and on signal loss.

How can I set up fail safe on my system?

If your radio supports “fail safe” on the transmitter channel used to select the modes, then you can set up fail safe for signal loss, if you don’t have a radio which will do this then you can only have fail safe on a three position switch. The Futaba T8J allows you to do the fail safe settings on the switch and the radio signal loss at the same time.

How do I know fail safe is working? Can I check it before I need it?

Yes, when you have the Naza connected to the PC and the assist software is running all you will need to do is switch off your radio system, you will see that the “flight mode” will jump to the fail safe option, when this happens the failsafe box will turn blue, if you are not able to set your radio to this function on signal loss you can still test this by moving the switch to the fail safe position, this will have the same outcome, the copter will return to home when the fail safe box is highlighted. When you are happy that all these settings are correct, go to your flight field and test the operation of the fail safe while in flight, the first tests are best done close by to make sure all is working as expected. Please note the Naza GPS will climb to 20 meters if it is below this height before returning home to land, so if you trigger fail safe in front of you at 3 or 4 meters it will ascend before it comes back to you,

I would like to use PPM, can I?

Yes, PPM is an option on the Naza.

I have read that you should leave your Naza outside to acclimatise to a shift in temperature on a cold / hot day, is this true?

With all systems the temperature will have an effect on the gyro’s and accelerometers, it is a good idea to allow a short period of time for the system to adjust to the temperature before flight, a few min’s would be enough to allow for this to take place.

I see an error message flashing in the lower left of the assist software window, what does it mean?

This is normally seen after an update has been done, if you click on the flashing message it will explain why the message is there and the steps needed to stop it from happing, normally this will be a cycle of the power.

What is the Attitude setting?

The Attitude setting is the control setting which will change how the copter reacts to the movement you make on the RC controller, these are best left at 100% for your first flights, when you have become confident you could move these up a little higher and see if you like the “feel” of the copter. Only add 10% at a time to these figures as they will change the flight experience a lot if you go too far!

How should I mount and where should I place my Naza on my copter?

The Naza should always be placed as close to the centre of gravity as possible, this is normally in the middle of the lower plate, the front of the copter should have the motor outputs (M1, M2 etc.) and the rear of the copter should have the RC Radio inputs (A, E, R etc.). In the box the Naza will have some 3M VHB “stickers”, these are very thin and should be used to mount the Naza, please don’t use any thick foam tapes or Velcro.

What battery should I use with my Naza and copter?

The DJI Naza will support either a 3S or a 4S battery. The batteries used will determine the size of the props used, the 3S batteries should be used with the 10”propellers, the 4S batteries should be used with the 8” propellers, there are labels on the motor to confirm the battery size and prop combinations best used with the system. The batteries we use on our F450 Flame Wheels are3S 3200 mAh Lipo, these givegood 10 min’s of flight or more if you are not sport flying! The F550 Flame wheels benefit from a slightly larger battery, the 4S as they have an additional two motors and weigh a little more.

What figures should I enter for the GPS in the three boxes marked X Y Z?

When you have checked your copter for the centre of gravity you will need to tell the NAZA where it is, this is very easy to do, if the C of G is below the GPS unit you will place a minus figure in the box “Z”, if the C of G is above the GPS you will enter a positive number in the box “Z”, when entering a positive number you will not need to place a “+” before it, you will only need enter a “-“ for negative numbers.

If you have mounted the GPS behind the Naza you will need to place a minus number in the “X” box or a positive number in the “X” box if mounted in front of the Naza.

The final box is the “Y”, this is the left and right mounting point of the GPS, you add a minus figure if you have mounted the GPS to the left of the C of G and a positive number if you have mounted to the right of the C of G.

All measurements are done in Cm’s and are taken from the point where the C of G is, this is normally found in the centre of the lower frame plate without any additional items being added like camera mounts etc. If you add any additional parts that could / will change the C of G then you will need to reset these figures before you fly again.